Presidium OTI All-In-One Diamond Tester Casting Machines & Equipment Wood stand holds all four

Wood stand holds all four pliers upright for organized bench storage

This Extended Set Plus represents that remaining stock — consolidated into one comprehensive package for shops that want broad fixture coverage from a system that is no longer in production

this control gives jewelers and metalsmiths convenient countertop-level operation—allowing you to override the automatic start feature on compatible Superflow models or to easily start and stop the PGR without reaching for the unit itself

The built-in heater reaches up to 149°F (65°C)

Presidium OTI All-In-One Diamond Tester Casting Machines & Equipment Wood stand holds all fourThe Presidium OTI All In One Diamond Tester combines dual optical and thermal testing technology into a single probe, delivering fast, reliable diamond authentication for professional jewelers and gemologists. This versatile instrument distinguishes natural diamonds from lab grown diamonds, moissanite, and common simulantsincluding glass, sapphire, and cubic zirconiawhether the stone is loose or mounted in any jewelry setting. With a resistive